1. Preheat the oven to 350°F. Lightly oil a 9x13x2-inch baking dish.,2. Heat the olive oil in a heavy pot over medium-low heat. Add the sausages and cook, breaking them up into clumps, until browned, 10 to 12 minutes. Using a slotted spoon, transfer to a large bowl.,______,4. Bake until the cheese is melted and the pasta is heated through, about 20 minutes.